Transmission opportunity operation of uplink multi-user multiple-input-multiple-output communication in wireless networks
First Claim
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1. A method of wireless communication, comprising:
- a wireless station obtaining a transmission opportunity (TXOP) period for communicating with a wireless access point (AP) over a wireless communication channel;
the wireless station sending an announcement to the wireless AP to share the TXOP period with at least another wireless station, as a multi-user TXOP period for simultaneously transmitting data from the wireless station and the at least another wireless station to the wireless AP on multiple uplink (UL) spatial streams over the wireless channel;
receiving a UL transmission indication (UTI) frame by the wireless station along with addresses of target wireless stations allowed to transmit to the wireless AP in a UL phase and allowed UL transmission time for each target wireless station; and
communicating UL transmission information in at least one indication included in a quality of service (QoS) data frame and a frame header.
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Abstract
Wireless communication in a wireless network comprises a wireless station obtaining a transmission opportunity period (TXOP) for communicating with an access point (AP) over a wireless communication channel. The wireless station sends an announcement to the AP to share the transmission opportunity period with at least another wireless station, as a multi-user transmission opportunity period for simultaneously transmitting data from said wireless stations to the AP on multiple uplink (UL) spatial streams over the wireless channel. UL TXOP transmission information is communicated based on one or more indications included in a quality of service (QoS) data frame and a frame header.
113 Citations
29 Claims
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1. A method of wireless communication, comprising:
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a wireless station obtaining a transmission opportunity (TXOP) period for communicating with a wireless access point (AP) over a wireless communication channel; the wireless station sending an announcement to the wireless AP to share the TXOP period with at least another wireless station, as a multi-user TXOP period for simultaneously transmitting data from the wireless station and the at least another wireless station to the wireless AP on multiple uplink (UL) spatial streams over the wireless channel; receiving a UL transmission indication (UTI) frame by the wireless station along with addresses of target wireless stations allowed to transmit to the wireless AP in a UL phase and allowed UL transmission time for each target wireless station; and communicating UL transmission information in at least one indication included in a quality of service (QoS) data frame and a frame header. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A wireless station, comprising:
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a Physical Layer (PHY) configured to provide wireless communication over a wireless communication channel; Media Access Control (MAC) layer; and a channel access processor configured to obtain a transmission opportunity period (TXOP) to communicate with a wireless access point (AP) over the wireless communication channel, wherein the channel access processor is configured to send an announcement to the wireless AP to share the transmission opportunity period with at least another wireless station as a multi-user transmission opportunity period to simultaneously transmit data from the wireless station and the at least another wireless station to the wireless AP on multiple uplink (UL) spatial streams over the wireless channel, to receive a UL transmission indication (UTI) frame along with addresses of target wireless stations allowed to transmit to the wireless AP in a UL phase and allowed UL transmission time for each target wireless station, and to communicate transmission information in at least one indication included in a quality of service (QoS) data frame and a frame header. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless access point (AP), comprising:
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a Physical Layer (PHY) configured to provide wireless communication over a wireless communication channel; a Media Access Control (MAC) layer configured to manage simultaneous transmissions from multiple wireless stations to the wireless AP on multiple uplink (UL) spatial streams during a multi-user transmission opportunity period over a wireless channel; and a channel access processor configured to transmit a UL transmission indication (UTI) frame to the multiple wireless stations along with addresses of target wireless stations allowed to transmit to the wireless AP in a UL phase and allowed UL transmission time for each target wireless station; wherein the wireless AP is configured to receive transmission information in at least one indication included in a quality of service (QoS) data frame and a frame header. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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Specification